Paper-cutting machine



Jan. 7, 1930. F. H. PATTERSON PAPER CUTTING MACHINE Filed Oct. 1. 1928 anew/"041 0 I E lifal'c'l'sorv mm l Patented Jan. 7, 1930 UNITED STATES;

FRANK. HOWARD PATTERSON, or rr nnoma, ansas.

PAPER-CUTTING MACHINE Application filed October 1, 1928. Serial No. 309,526.

This invention relates to a machine for cutting a strip of paper, being inserted therethrough, the primary purpose ofthe machine being to cut out portions of the strip of paper. at regular intervals so as to leave relatively large openings therein between which the paper forming the strip can subsequently be separated into separate sheets, each sheet having an opening. 1

One of the objects is to providea cutting apparatus having simple andefzi'cient'means for properly timing the movement of the cutter with the longitudinal movement of the strip being acted upon.

lVith the foregoing and other objects in View which will appear as the description proceeds the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed Without departing from the spirit of the invention. In the accompanying drawings the preferred form of the invention has been shown.

In said drawings, Figure 1 is a side elevation of the machine a portion of the operating mechanism being broken away.

Figure 2 is a vertical transverse section. Figure 3 is a plan view of a portion of a strip of paper after it has been cut by the apparatus.

Referring to the figures by characters of reference 1 designates a table of any suitable proportions provided, between its ends, with an opening 2 from which is extended a suc t-ion fine 8. Bearing members 4 are mounted on the table adjacent one end for supporting a roll of paper indicated at A. The strip of paper as it is taken from this roll is extended under a guide roll 5 extending transversely across the table close to the hearing members 4. From this guide roll the strip of paper extends over the openingr2 and thence over a feed roll 6 to a take-up roll 7 journaled in bearing members 8 arranged on that end of the table remote from the members 4. The take-up roll has a pulley 9 retatable therewith and mounted to swing relative to the take-up roll and extending from the end portions thereof are arms 10 carrying a pressure roll, 11 adapted to bear firmly on the strip of paper at a point directly above the feed roll 6 so as to tightly gripthe paper between the rolls 6 and 11. Feed roll '6 has pulleys 12 and 13 secured to the shaft thereof and a loose belt 1 1 serves to transmit motion from pulley 13 to pulley 9. Another belt 15 is used for transmitting motion to the pulley 12 from a pulley 16 which rotates with a gear 17' journaled at one side of a standardlS. This standard is extended upwardly from the table and is disposed directly opposite to another standard 19. Theope'ning 2 is located in the table between the two standards 18 and 19.

A transverse shaft 20 is jonrnaled on the standards 18 and 19 and is provided, at one end with a cam 21 which exerts a thrust against a roller 22 carried by the upper end of a rack 23. This rack is slidable in a guide 24 provided therefor at one side of the table 1 and constantly meshes with the gear 17'. A spring 25 yieldingly supports the rack and is mounted on a stem 26 extending downwardly from the rack through a guide hanger 27' depending from standard 18.

Guide pins 28 extend upwardly from the top of table 1 and are spaced about the opening 2 so that the paper strip can lie flat on the table between these pins- On the pins are mounted springs 29' which yieldingly support a cutter head 30 from which depends a cutting blade 81 which is continuous and adapted to cut'out from the strip of paper a portion thereof which will leave an opening of the desired contour and proportions. Normally the cutting edge of the blade 31 is supported above the path of the strip of paper so that said strip can slide freely thereunder. r

The cutter head has a roller 32 at its upper end adapted to be engaged and actuated'by a cam 33 secured to the shaft. 20. Springs 29 hold the cutter head normally pressed up wardly against enlargements or heads 34 on V the pins 28. Shaft2Q'can be actuatedby any suitable means. For example a pulley 35 will cause the gear 17 and pulley 16 to rotate and motion will be transmitted through the belts and pulleys to the feed roll 6- and the take-up roll 7. As the strip is pressed against the feed roll 6 by the roll 11, the rotation of roll 6 will cause the strip S to move longitudinally a predetermined distance and at the same time that'portion of the strip payed out from the roll 6 will be wound on the take-up roll 7 As belt 14 is loose, it will slip on pulley 9 to compensate for any variations in length of material to be wound on the take-up roll. 7 Each downward thrust of the rack 23 will act to move thestrip S a predetermined distance. Following each movement of the strip S and while said strip is at rest during the return of the rack 23 to its raised or normal position, the cam 33 comes against roller 32 and thrusts the cutter head 30 downwardly. .This will cause the blade 31 to cut through that portion of the strip S thereunder,-thereby separating a iece of paper which is round, oval, or any 0t er desired shape, from the balance of the strip. There is a constant light suction downwardly through the flue 3 and, therefore, when this piece has been cut fromthe strip S it will be carried downwardly through the flue 3. In Figure 3. openings formed in the strip S have been shown at O. i

It might be added to the foregoing that, in order to permit return of the rack 23 to its raised or normal position without actuating the feeding mechanism, a suitable-pawl and ratchet connection is provided between gear 17 and the pulley 16, this connection being indicated generally at 37 In other words when the rack 23 is thrust downwardly the feeding mechanism will be actuated to feed the strip S in one direction but when the rack 23 moves back to its raised or normal position, the feed mechanism will not be actu-V ated., a

What is claimed is: a h a '1. A machine of the class described including a supporting-structure having an opening, a cutting blade yieldablysupported thereabove and extendingaround the opening, a feed roll, a take-up roll, anopera-ting shaft, means actuated by said shaft for intermittently driving the feed and take-up rolls toconvey a'strip of paper or the like intermittently along the supporting structure and over the;aperture, and blade operating means actuated by said shaft during pauses in the movement of the strip for cutting out that portion of the strip supported over the opening in the supporting structure.

2. A machine of the class described in-' mechanism when the rack is. moved in one direction, a drive shaft, and separate means carried by said shaft for successively actuating the rack and the cutter head to successively shift a strip of paper or the like longitudinally of the supporting structure and cut out a portion of said strip duringeach pause in the movement thereof.

In testimony that I claim the foregoing as my own, I have hereto aflixed' my signature.

FRANK HOWARD PATTERSON. 

